Abstract: Monoazo dyestuffs, free of carboxylic acid moieties or sulphonic acid moieties, of the formula ##STR1## wherein A and A' independently of one another are linear or branched alkylene having 2 to 6 carbon atoms;R is hydrogen, alkyl having 1 to 4 carbon atoms, cycloalkyl having 5 or 6 carbon atoms, alkenyl having 3 to 5 carbon atoms, phenyl, benzyl, phenethyl, alkylcarbonyl having 1 to 4 atoms or benzoyl;m is a number from 1 to 5 and n is a number from 0 to 1.

Abstract: Water-insoluble azo dyestuffs, their manufacture and use, which have the formula ##STR1## wherein D is a substituted phenyl or heterocyclic moiety which are free from ionic substituents and R.sup.1 is methyl or ethyl.

Abstract: In a process known per se for the preparation of white patterns or patterns of various colors on a colored substrate on textile materials comprising hydrophobic synthetic fibres or on textile materials based on mixed fibres composed of polyester and cellulose comprising discharge printing wherein a discharge reserving agent based on an alkali or on sulphites, the improvement which comprises employing as the dischargeable disperse dyestuffs having the formula I ##STR1## in which R and K have the meanings given in claim 1.

Abstract: Monoazodyestuffs free from water solubilizing moieties and which are useful in dyeing and printing polyester materials, mixtures of polyesters with natural materials or cellulose triacetate materials have the formula ##STR1## wherein X.sup.1 is nitro, cyano or methylsulphonyl and R.sup.1 is of the formula ##STR2## wherein Y.sup.1 is hydrogen, methyl or ethyl; Y.sup.

Abstract: Process for the manufacture of fast dyeings or prints on fibrous materials containing cellulose wherein metal containing reactive dyestuffs of the general formula ##SPC1##In whichM represents a cobalt or chromium atom,R represents a hydrogen atom, a halogen atom, a nitro, acetyl-amino,amino, or lower alkyl or alkoxy group containing from 1 to 4 carbon atoms,R' represents a hydrogen atom or an alkyl radical containing from 1 to 4 carbon atoms,R" represents a hydrogen atom, an alkyl radical containing from 1 to 4 carbon atoms or a phenyl rest which may be substituted andn is zero or the integer 1 andX represents the vinyl group or the radical of formula --CH.sub.2 --CH.sub.2 --Y in which Y represents a halogen atom, a sulfuric acid ester, thiosulfuric acid ester, phosphoric acid ester, dimethyl amino or diethyl amino group,Are applied onto the said fibrous materials and are fixed at a temperature within the range of from 0.degree. to 200.degree. C, preferably from 15.degree. and 150.degree.

Abstract: It had been found that the dyestuff of the formula ##STR1## is very suitable in a differential dyeing process for the dyeing of polyamide fiber materials at a pH of 2 to 9; the dyestuff possesses a very good differentiating behavior and migrating behavior yielding dyeings of a high degree of evenness while it does not dye accompanying non-polyamide fibers, not even in traces.